Comparison Overview

Walmart

VS

Post Office Ltd

Walmart

702 SW 8th St, Bentonville, Arkansas, US, 72712
Last Update: 2025-12-09
Between 800 and 849

Sixty years ago, Sam Walton started a single mom-and-pop shop and transformed it into the world’s biggest retailer. Since those founding days, one thing has remained consistent: our commitment to helping our customers save money so they can live better. Today, we’re reinventing the shopping experience and our associates are at the heart of it. When you join our Walmart family of brands, you’ll play a crucial role in shaping the future of retail, improving millions of lives around the world. We are ecstatic to have been named a Great Place to Work® Certified May 2023 – May 2024, Disability: IN 2023 Best Places to Work, and Fast Company 100 Best Workplaces for Innovators 2023. This is that place where your passions meet purpose. Join our family and build a career you’re proud of.

NAICS: 43
NAICS Definition: Retail Trade
Employees: 562,029
Subsidiaries: 26
12-month incidents
0
Known data breaches
7
Attack type number
2

Post Office Ltd

100 Wood Street, London, EC2V 7ER, GB
Last Update: 2025-12-09
Between 750 and 799

We’ve come a long way since it all started over 380 years ago. We’ve built up a network of 11,500 branches across the country. To give you a sense of how big that is, we’ve got more branches than the four biggest banks in the UK put together. Or put simply, we’re the largest retail network in the UK. So we’re there for our customers, wherever they are. But our biggest branch by far is our website, which gets nearly 1 million visitors a week, so we’re building on our digital strategy too. As you can imagine, a business this big has lots of opportunities in lots of different areas. So we’re always looking out for enthusiastic, ambitious and customer-focused people to join us. And we’re striving to become “simpler to run, better for customers and a great place to work”, so innovation is really important. We’re confident the changes we make will be for the best, benefiting both our people and our customers. Social Media Policy: https://bit.ly/3gwSgEl

NAICS: 43
NAICS Definition: Retail Trade
Employees: 16,578
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/walmart.jpeg
Walmart
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
https://images.rankiteo.com/companyimages/post-office.jpeg
Post Office Ltd
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
Compliance Summary
Walmart
100%
Compliance Rate
0/4 Standards Verified
Post Office Ltd
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Retail Industry Average (This Year)

No incidents recorded for Walmart in 2025.

Incidents vs Retail Industry Average (This Year)

No incidents recorded for Post Office Ltd in 2025.

Incident History — Walmart (X = Date, Y = Severity)

Walmart cyber incidents detection timeline including parent company and subsidiaries

Incident History — Post Office Ltd (X = Date, Y = Severity)

Post Office Ltd cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/walmart.jpeg
Walmart
Incidents

Date Detected: 4/2025
Type:Ransomware
Attack Vector: Zero-day vulnerabilities in MOVEit and Cleo file transfer software
Motivation: Data extortion
Blog: Blog

Date Detected: 1/2024
Type:Breach
Attack Vector: Hacking
Blog: Blog

Date Detected: 12/2023
Type:Breach
Attack Vector: External System Breach (Hacking)
Blog: Blog
https://images.rankiteo.com/companyimages/post-office.jpeg
Post Office Ltd
Incidents

No Incident

FAQ

Walmart company demonstrates a stronger AI Cybersecurity Score compared to Post Office Ltd company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Walmart company has historically faced a number of disclosed cyber incidents, whereas Post Office Ltd company has not reported any.

In the current year, Walmart company has reported more cyber incidents than Post Office Ltd company.

Walmart company has confirmed experiencing a ransomware attack, while Post Office Ltd company has not reported such incidents publicly.

Walmart company has disclosed at least one data breach, while the other Post Office Ltd company has not reported such incidents publicly.

Neither Post Office Ltd company nor Walmart company has reported experiencing targeted cyberattacks publicly.

Neither Walmart company nor Post Office Ltd company has reported experiencing or disclosing vulnerabilities publicly.

Neither Walmart nor Post Office Ltd holds any compliance certifications.

Neither company holds any compliance certifications.

Walmart company has more subsidiaries worldwide compared to Post Office Ltd company.

Walmart company employs more people globally than Post Office Ltd company, reflecting its scale as a Retail.

Neither Walmart nor Post Office Ltd holds SOC 2 Type 1 certification.

Neither Walmart nor Post Office Ltd holds SOC 2 Type 2 certification.

Neither Walmart nor Post Office Ltd holds ISO 27001 certification.

Neither Walmart nor Post Office Ltd holds PCI DSS certification.

Neither Walmart nor Post Office Ltd holds HIPAA certification.

Neither Walmart nor Post Office Ltd holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

A weakness has been identified in itsourcecode Online Pet Shop Management System 1.0. This vulnerability affects unknown code of the file /pet1/addcnp.php. This manipulation of the argument cnpname causes sql injection. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

A security flaw has been discovered in Tenda AX9 22.03.01.46. This affects the function image_check of the component httpd. The manipulation results in use of weak hash. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is indicated that the exploitability is difficult. The exploit has been released to the public and may be exploited.

Risk Information
cvss2
Base: 2.6
Severity: HIGH
AV:N/AC:H/Au:N/C:N/I:P/A:N
cvss3
Base: 3.7
Severity: HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
cvss4
Base: 6.3
Severity: HIGH
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

A weakness has been identified in code-projects Student File Management System 1.0. This issue affects some unknown processing of the file /admin/update_student.php. This manipulation of the argument stud_id causes sql injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

A security flaw has been discovered in code-projects Student File Management System 1.0. This vulnerability affects unknown code of the file /admin/save_user.php. The manipulation of the argument firstname results in sql injection. The attack can be executed remotely. The exploit has been released to the public and may be exploited.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description

A vulnerability was identified in code-projects Student File Management System 1.0. This affects an unknown part of the file /admin/update_user.php. The manipulation of the argument user_id leads to sql injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Risk Information
cvss2
Base: 7.5
Severity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
cvss3
Base: 7.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X